schmersal PSC1-C-10 Series User Manual

Installation manual
HB-37350-810-01-50F-EN PSC1-C-10 Installation manual V2.1.docx Page 47 of 189
Version: 50F
For the safety-related assessment of the overall system, it is therefore possible in
principle to use the following diagnostics for the input sensors:
Characteristic
s of the input
element
Tests that can be
configured / operative
tests
DC
Definition of the
measure
Comment
Cross
-circuit test
With time monitoring
Start
-up testing
Cyclic test in operation
Single-channel
O
O
>60
Cyclic test stimulus by
dynamic change of input
signals
An adequately high
test rate must be
ensured
X
90
Cyclic test stimulus by
dynamic change of input
signals
Only effective if pulse
allocation active
X
O
O
90-99
Cyclic test stimulus by
dynamic change of input
signals
DC dependent on
frequency of the start
/ cyclic test
DC = 90 test only at
intervals > 4 weeks
DC = 99 test at least
1 x day/ or 100-times
demand rate
Dual-channel
90
Cross monitoring of input
signals with dynamic test if
short circuits are not
detectable (for multiple
inputs/outputs)
With short-circuit fault
exclusion up to
DC=99 possible
O
O
90-99
Cyclic test stimulus by
dynamic change of input
signals
DC dependent on
frequency of the start
/ cyclic test
X
99
Cross comparison of input
signals with immediate and
intermediate results in the
logic (L) and program
execution monitoring in
relation to timing and logic,
and detection of static failures
and short-circuits (with multiple
inputs/outputs)
Only effective if pulse
allocation active
X
99
Plausibility check, e.g. usage
of normally open contacts and
normally closed contacts =
antivalent signal comparison of
input elements
Only effective in
conjunction with
activated time
monitoring function
for input element
Options:
X: Diagnostic measure activated
O: At least 1 diagnostic measure activated

schmersal PSC1-C-10 Series Specifications

General

Brand	schmersal
Model	PSC1-C-10 Series
Category	Control Unit
Language	English